[Event "Milwaukee North Central op"]
[Site "Milwaukee"]
[Date "1971.??.??"]
[Round "6"]
[White "Hehnlin, Andy"]
[Black "Gerber, Robert"]
[Result "0-1"]
[ECO "B43"]
[PlyCount "60"]
[EventDate "1971.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. g3 a6 7. Bg2 Bb4 8. Nde2 Nge7 9. 0-0 0-0 10. Be3 b5 11. f4 d6 12. Nb1 Bb7 13. Nd2 Rac8 14. c3 Ba5 15. Rc1 Rfd8 16. Qc2 Bb6 17. Bxb6 Qxb6+ 18. Kh1 d5 19. e5 d4 20. Qb1 d3 21. Ng1 Nf5 22. Ngf3 Ne3 23. Rfe1 Ne7 24. h3 N7f5 25. Kh2 Nxg2 26. Kxg2 Ne3+ 27. Kh2 Bxf3 28. Nxf3 d2 29. Nxd2 Rxd2+ 30. Kh1 Qc6+ 0-1

[Event "Milwaukee North Central op"]
[Site "Milwaukee"]
[Date "1971.??.??"]
[Round "1"]
[White "Sandrin, Angelo"]
[Black "Gerber, Robert"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "33"]
[EventDate "1971.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 d6 4. Bb5 Bd7 5. Nf3 a6 6. Bxc6 Bxc6 7. 0-0 e6 8. Qe1 Nf6 9. d3 Be7 10. e5 dxe5 11. fxe5 Nd5 12. Ne4 b5 13. Qg3 Rg8 14. Nfg5 Bxg5 15. Bxg5 Ne7 16. Nd6+ Kd7 17. Rxf7 1-0

[Event "Milwaukee North Central op"]
[Site "Milwaukee"]
[Date "1971.??.??"]
[Round "5"]
[White "Warren, Jim G"]
[Black "Gerber, Robert"]
[Result "1-0"]
[ECO "A57"]
[PlyCount "41"]
[EventDate "1971.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 d6 6. Nc3 g6 7. Nf3 Bg7 8. Be2 0-0 9. 0-0 Nbd7 10. e4 Qc7 11. Qc2 Bb7 12. h3 Rfb8 13. Re1 axb5 14. Nxb5 Qb6 15. Nc3 Ne8 16. Be3 Ba6 17. Bxa6 Rxa6 18. Reb1 Qa5 19. Bd2 Nc7 20. a4 Qb4 21. Nb5 1-0

